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Happymodel Crazybee F4 PRO V2.1 2-3S Flight Controller 5A ESC & Compatible DSM2 Frsky Flysky RX for Sailfly-X RC Drone

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                  Happymodel Crazybee F4 PRO V2.1 2-3S Flight Controller w/ 5A ESC & Compatible Receiver for Sailfly-X RC Drone

                  Specification:
                  Brnad Name: Happymodel
                  Model: Crazybee F4 PRO V2.1
                  Item Name: Crazybee F4 Flight Controller built-in 5A ESC & Receiver
                  Optional Receiver Version: Without Receiver/ Compatible Frsky Receiver/ Compatible Flysky Receiver
                                                              / Compatible DSM2/DSMX Receiver
                  MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
                  Sensor: MPU-6000(SPI connection)
                  Board size: 28.5 * 28.5MM
                  Power supply: 2-3S battery input (DC 7.4-13V)
                  Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
                  Built-in Receiver ( Diffirent version having diffirent receiver,   without receiver version doesn't have rx)
                  Built-in Betaflight OSD(SPI Control)
                  Built-in Current meter Max 28A
                  Current meter scale set to 1175
                  Built-in 5V 1A BEC with LC filter
                  Built-in voltage detection
                  Firmware
                  (Frsky version) CRAZYBEE F4FR PRO V2.1 Firmware target: CrazybeeF4FR
                  (Flysky version) CRAZYBEE F4FS PRO V2.1 Firmware target: CrazybeeF4FS
                  (DSM2/DSMX version) CRAZYBEE F4DX PRO V2.1 Firmware target: CrazybeeF4DX
                  (No RX version) CRAZYBEE F4 PRO V2.1 Firmware target: CrazybeeF4DX

                  Onboard 5A 4 In 1 ESC

                  MCU upgraded to EFM8BB21
                  Power supply: 2-3S LiPo/LiPo HV (7.4v/13v)
                  Current: 5A continuous peak 6A (5 seconds)
                  Support BLHeliSuite programmable
                  Factory firmware: S_H_50_REV16_7.Hex
                  Default protocol: DSHOT600

                  Onboard Receiver
                  Frsky version:  Built-in SPI Frsky receiver with telemetry(D8/D16 switchable)
                                           Compatible both Non EU and EU-LBT transmitter Channels: 8ch or 16ch

                                           EU-LBT support(need to update betaflght v4.0 date 2019-04-11)
                                           Failsafe support
                                           No ground interference ( Transmitter and receiver 1 m from the ground): 300m
                   

                  Flysky version: Protocol: AFHDS and AFHDS-2A Switchable

                                           Channels: 8ch(AFHDS) or 14ch(AFHDS-2A)
                                           No ground interference ( Transmitter and receiver 1 m from the ground): 300m
                                           Failsafe support
                   

                  DSMX version: Protocol: DSM2/DSMX compatible
                                           Channels:6-9 (Depend on your radio)
                                           No ground interference ( Transmitter and receiver 1 m from the ground): 300m

                  No RX version: No RX version support external serial-bus receiver like xm+, crossfire, S-FHSS etc

                  Package Included:
                  1x Happymodel Crazybee F4 PRO V2.1 Flight Controller
                   

                                            



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